A254961 Cubes not divisible by 10 with digits d_1, d_2, ... d_k such that d_1^3 + ... + d_k^3 is a cube.

1, 8, 474552, 1643032, 13312053, 27818127, 125751501, 1015075125, 1121622319, 1256216039, 1501123625, 3811036328, 11000295424, 27081081027, 36067838464, 69173457625, 81690010219, 125075015001, 143466352875, 164386475352, 185680777625, 198053337789, 226534772736, 269460960579, 271468421875, 273738705157

Offset

1,2

Comments

Any one of these terms can have M 0's following the term, where M is a multiple of 3. Thus, the cubes ending in 0 have been omitted.

Links

Table of n, a(n) for n=1..26.

Prog

(PARI) for(n=0, 10^4, if(n%10, N=n^3; d=digits(N); s=0; for(i=1, #d, s+=d[i]^3); if(ispower(s, 3), print1(N, ", "))))

Crossrefs

Cf. A000578, A254960.

Sequence in context: A223939 A013846 A131677 * A061212 A003836 A218429

Adjacent sequences: A254958 A254959 A254960 * A254962 A254963 A254964

Keyword

nonn,base

Author

Derek Orr, Feb 11 2015

Status

approved